v4.4.0

New Features

• Added initializers to ReseedingRandomGenerator that take 1 or 0 arguments
  • If Reseeder conforms to SeedableFromOtherRandomGenerator, the reseeder is created from Reseeder.seeded (see a7d1b9b)
  • For Swift >= 3.1, if Reseeder is DeviceRandom or ARC4Random, the reseeder is just Reseeder.default (see da57645)
• Added floating-point value generation methods for open, half open, and closed intervals (see 59182e5)
• Added thread-local random generators (see fde214b) 🎉

Improvements

• Made Double and Float random(using:) about 27 times faster (see 8799af7)
• Made CGFloat.random(using:) faster , in turn making (NS|UI)Color.random(using:) faster (see a1b60d1)

Fixes

• Made randomClosed methods be truly on the [0, 1] interval (see 9b0d56b)

v4.3.1

Changes

• Random Dates are internally relative to timeIntervalSinceReferenceDate
• Deprecated Date random(within:using:) for TimeInterval ranges (see 2d30755)

v4.3.0

New Features

• Added SeedableFromOtherRandomGenerator protocol
  • Allows for creating a RandomGenerator seeded from another RandomGenerator
• Added ReseedingRandomGenerator struct for reseeding a base RandomGenerator with another after a certain number of bytes have been generated

Improvements

• Much faster Array random(using:) for Swift versions before 3.1

Fixes

• Fix compilation issues by not using API unavailable in Swift 3.1

v4.2.0

Improvements

• Made Array init(randomCount:using:) about 4 times faster for integer types by having it safely call init(unsafeRandomCount:using:) (see 350ce9d)

• Made Dictionary shuffling faster (see 1977f86)

Changes

• Made Array init(unsafeRandomCount:using:) available for all element types, regardless if they conform to UnsafeRandom (see 71d4bc6)

v4.1.0

New Features

• Added seeded static variable to Xoroshiro, Xorshift, XorshiftStar, and MersenneTwister

Improvements

• Made the init(randomCount:using:) family of Array initializers significantly faster

v4.0.0

New Features

• Added randoms(using:) methods to Random- types that return a sequence of random values according to the protocol's specialization
• Added Bool.random(withWeight:using:) for probability
• Added more random number generators:
  • Xorshift
  • XorshiftStar
• NSMutableArray now conforms to Shuffleable and UniqueShuffleable
• Added randomTuple(using:) global functions for creating tuples of up to six random elements
• Added ShuffleableInRange and UniqueShuffleableInRange protocols

Improvements

• Much better init(randomCount:using:) performance for Array and Dictionary
• Array shuffling is ten times faster
• Much better performance for random(within:using:) for signed integers

Changes

• Changed RandomGenerator from an enum to a protocol type
  • As a result, there is no default generator, meaning a generator must be specified as a parameter
• Random generation functions take a generic RandomGenerator type as an inout argument
• Removed URL conformance to Random

v3.0.0

New Features

• Mersenne Twister random generator
• All integer types conform to UnsafeRandom
• Array(unsafeRandomCount:using:) for types conforming to UnsafeRandom
  • For much better performance with integer types, this should be used
• Added a benchmark target that can be built with the Swift package manager
• Created RandomWithMaxWidth and RandomWithExactWidth protocols
• Added randomize(buffer:maxWidth:) and randomize(buffer:exactWidth:) methods to RandomGenerator

Improvements

• Generating RandomEnum values is significantly faster

Fixes

• UnicodeScalar now produces a uniform distribution when the Range or ClosedRange spans below 0xD7FF and above 0xE000

Changes

• Removed RandomDistribution (#29)
• The devRandom and devURandom cases for RandomGenerator are now a single device case with a DeviceSource parameter
• The arc4random case for RandomGenerator is now camel-cased arc4Random
• Float80 extension now available for i386 and x86_64 architectures, not only for macOS
• URL.random(fromValues:) now returns an Optional<URL>
• Added ShiftOperations dependency
• Uses Strideable instead of _Strideable

v2.3.0

New Features

• Date now conforms to RandomWithinRange
• Made unicode scalar based string generation faster
• Created UnsafeRandom, RandomEnum, RandomWithAll, and RandomRawRepresentable protocols

Fixes

• Fix which random generator is used for random String. Previously used the default instead of the one passed into the function.

v2.2.1

Fixes

• Conformance to Random was removed accidentally for types conforming to FloatingPoint. This has been fixed.

v2.2.0

Fixes

• Random Int generation would rely on the size of UIntMax which was apparently not reliable (#28)

Changes

• If on Linux, Android, or Windows, the arc4random_buf function will be dynamically loaded, making the RandomGenerator.arc4random option more widely available
• Removed default parameter for randomGenerator for the random(using:) function of Range types
• Removed Random protocol dependency from Random- protocols